What force is required to give an object with mass 50 kg an acceleration of 8 m/s2?

The reaction between nitrogen and hydrogen to produce ammonia is described as an equilibrium reaction. what substances are present in the reaction mixture when equilibrium has been obtained?

A man walks 600 m [E47°N], then 500 m [N38°W], then 300 m [W29°S], and finally 400 m [S13°E]. Find his resultant displacement.

Why do we have seasons on Earth

This is a measure of mass per unit volume.

I want to examine the surface of a planet that is completely covered by a thick layer of clouds all the time. What wavelength of electromagnetic radiation would I be smartest to use? A. visible light B. x-rays C. radar waves D. ultra-violet E.

Why is copper a good conductor?

Sketch of the distance vs time graph for a car with constant velocity

3. Applying Concepts Explain why a canoe that has hollow, water- tight compartments on its ends won't sink, even if it is capsized.

If two forces of equal magnitude act on an object that is hinged at a pivot, the force acting farther from the pivot must produce the greater torque about the pivot. A) true B) false C) unable to decide without knowing the shape of the object

Standard voltage for electrical circuits in the United States is 120 volts. Is this the standard voltage in other countries?